<li class="course_info">
  <a href="#" class="thumbnail"><span class="image"><%= image_tag "img_default_user.gif" %></span></a>
  <span class="item_del">
    <a href="#">x</a>
  </span>
  <span class="study_button">
    <a href="#">开始学习</a>
  </span>
  <div class="info">
    <h6 class="link_brown"><a href="#">我创建的课程一</a></h6>
    <p class="tags tags_icon">
      标签:<span class="title_tags"><a href="#">学习</a>,<a href="#">日本语</a></span>
    </p>
    <div class="progress">
      <div class="bar" style="width: 40%;"><span></span></div>
    </div>
    <div class="item_info">
      <span class="total_count">100</span>个单词 |
      <span class="completed_count">10</span>个已学完 |
      <span class="people_count">20</span>人在学 |
      进度:<span class="text_progress">50%</span>
    </div>
  </div>
</li>